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Implants > Intro to Implant Dentistry > Flashcards

Intro to Implant Dentistry Flashcards

1
Q

The leading causes for teeth loss are…

A

caries and periodontal disease

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2
Q

Approximately ____% of adults aged 20 to 64 have no teeth

A

5%

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3
Q

almost ___% of seniors (above the age of 65) have no remaining teeth.

A

30%

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4
Q

Approximately __% of US adults aged 20-64 had dental caries in 2011-2012

A

91%

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5
Q

Periodontal disease affects ___% of the population between 35-44
years of age

A

75%

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6
Q

Periodontal disease affects ___% of people over 65 years of age

A

95%

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7
Q

__________ Americans are missing at least one tooth

A

120 million

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8
Q

more than ________ Americans are currently edentulous

A

36 million

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9
Q

The dental implant and final abutment market in the U.S. is currently valued at ________ and is forecast to reach $1.5 billion by 2025 and is largely driven by general practitioner procedure growth

A

$1.1 billion

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10
Q

The success rate of dental implants has been reported inthescientific literature to be around ____%

A

98%

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11
Q

Denture - ___% of lost function restored

A

30%

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12
Q

Removable Partial - __% of lost function restored

A

60%

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13
Q

Fixed Dental Prostheses (Crowns
and Bridges) - ____% of lost function restored

A

100%

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14
Q

What is a dental implant?

A

A prosthetic device or alloplastic material implanted into the oral tissues beneath the mucosal and/or periosteal layer, and/or within the bone to provide retention and support for a fixed or removable dental prosthesis

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15
Q

What are the three implant categories?

A
  • Eposteal: on/around the bone
  • Transosteal: through the bone
  • Endosteal: in the bone
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16
Q

What is an eposteal implant?

A

on/around the bone
- Subperiosteal

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17
Q

What is a transosteal implant?

A

through the bone
- Transmandibular

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18
Q

What is an endosteal implant?

A

in the bone
- Blade and Root Form

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19
Q

What are subperiosteal implants made of?

A

Vitallium metal

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20
Q

What kind of dentures are made on subperiosteal implants?

A

Denture is implant supported = expensive

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21
Q

What is the 10 year survival rate for the subperiosteal implant?

A

85%

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22
Q

When are subperiosteal implants indicated?

A

atrophic edentulous mandible

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23
Q

What does bone resorption of a subperiosteal implant lead to?

A

mobility infection and loss

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24
Q

What is a transosteal implant made of?

A

titanium metal

25
Q

What is the 15 year success rate of a transosteal implant?

A

91%

26
Q

When are transosteal implants indicated?

A

Only indicated for the edentulous mandible
- Excellent for the atrophic mandible where root form implants would weaken the jaw

27
Q

What type of denture is used with a transosteal implant?

A

Denture is tissue supported

28
Q

Why are transosteal implants not widely used?

A
  • Requires one surgery usually in the hospital.
  • External incision / approach
  • Complex surgical procedure therefore not widelyused.
29
Q

Where can you put a transosteal implant?

A

Restricted to the anterior mandible.

30
Q

What is the success rate of a transmandibular implant?

A

97%

31
Q

What type of denture is used with a transmandibular implant?

A

implant supported denture

32
Q

What is a transmandibular implant made of?

A

Gold alloy

33
Q

What makes a transmandibular implant reversible?

A

can be removed due to design of screws and degree of integration, but not easy process

34
Q

When are transmandibular implants used?

A

Used for severe atrophic mandibles <10mm

35
Q

What does a transmandibular implant allow for?

A

■Allows facial muscles to be reattached to improve facialprofile
■One stage, extra-oral approach (submental)
■Eliminates ridge augmentation or vestibuloplasty

36
Q

What are the three types of endosteal implants?

A

blade, cylinder, screw

37
Q

What are the characteristics of a blade endosteal implant?

A

■ Titanium metal
■One stage/best for partially edentulous mandibles
■Most widely used until 1980

38
Q

What is the success rate (5 years) of the blade endosteal implant?

A

75%

39
Q

What caused early failures of the blade endosteal implant?

A

heat at preparation and immediate loading

40
Q

What are the drawbacks of a blade endosteal implant?

A

Difficult to prepare a precision slot and if it fails, a large section of bone is involved

41
Q

What is the success rate of a root form endosteal implant?

A

greater than 90%

42
Q

When are root form endosteal implants indicated?

A

partially and fully edentulous cases/any area of the mouth (versatility)

43
Q

What are the uses of root form endosteal implants?

A

overdenture, hybrid, crown and bridge, ortho anchorage

44
Q

What are the characteristics of a root form implant?

A

■Titanium or an alloy of titanium-aluminum-vanadium metal
■1 or 2 stage approach
■ In office procedure
■Screws/Cylinders
■Machined or rough (to increase surface area for integration)

45
Q

Who’s research made root form implants the standard?

A

Per-Ingvar Brånemark (the daddy of implant dentistry)

46
Q

What type of implant can you use the posterior maxilla is atrophic?

A

Super Implants: Zygomatic & Pterygoid

47
Q

What is osseointegration?

A

a direct structural and functional connection between ordered, living bone and the surface of a load-carrying implant

48
Q

Why is titanium used for implants?

A

■ Not recognized as a foreign object by the body
■ Less host rejection than other metals/alloys
■Medicine also recognized utilization in joint replacements and heart valves

49
Q

What are the differences in disease processes between teeth and implants?

A

Teeth:
* Caries
* Periodontaldisease
Implants:
* Peri-implantitis (bone)
* Peri-mucositis(soft-tissue)

50
Q

What are the different types of implant designs?

A
  • one piece vs two piece
  • tissue level vs bone level
  • external hex vs internal hex
51
Q

Predictability of single implant fixture survival is in the _______% range

A

94-98%

52
Q

_____% of implant failures occur prior to the placement of the restoration

A

55-60%

53
Q

_____% of implant failures occur after the restoration placement

A

40-45%

54
Q

What % of implant failures occured in the 1st, 2nd, and 3rd year?

A
  • 57% of the failures occurred in 1st year
  • 34% of the failures occurred in the 2nd year
  • 9% of the failures occurred in the 3rd year
  • 0%after?
55
Q

How much bone loss during the 1st year of implant?

A

1 mm average

56
Q

How much bone loss during each year after the first year of implant?

A

0.1 mm average

57
Q

__mm of soft-tissue recession can generally be expected during the first year of an implant

A

1mm

58
Q

Most soft tissue recession occurs within the first ___ months following abutment connection surgery

A

3

Implants (15 decks)

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